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bikewithnoname wrote:Even if I belive that weight that's 85gms or 38% heavier than a Zipp SLC2. Where does the weight vs watt difference actually pay off?

Considering the current aero road bar offerings bontrager@220ish, 3t aerotundo ltd @ 190ish and enve SES @ 250ish i would say they are not worth it at all. I had the bontrager xxx aero and it was great but the size of these bar tops is just overboard and they do not look comfortable.

I don't know how much that stem covering adds in aero advantage (1watt savings at 30mph i bet) but it would certainly add headaches when using any sort of multitool.

Not much more headache than working around a garmin out front mount paired with something like a Zipp stem.

I just went to the SL70 aero bar and I think the tops are fantastic. A lot more comfortable to rest my forearms (even unwrapped) than the Ergonova they replace (which were wrapped). That said, I think the Cervelo bar looks pretty cool and for my usage preference - it would work out pretty well.